feat: rename ntu img to ruby

utils/completion_reward.py

@@ -55,11 +55,6 @@ class CompletionReward:
         self.google_agent = GoogleAgent()
         self.mtk_agent = MTKAgent()
         self.ntu_agent = NTUAgent()
-        self.openai_response_time = None
-        self.aws_response_time = None
-        self.google_response_time = None
-        self.mtk_response_time = None
-        self.ntu_response_time = None
         self.agents_responses = {}
         self.agent_list = [
             self.openai_agent,